High carbon graphite is a type of high carbon content carbon graphite powder with a carbon content of usually over 90%. There are many methods for purifying carbon graphite. The carbon graphite powder purification method can produce high-purity graphite powder with a carbon content greater than 99.9. Therefore, we have summarized various purification methods and techniques for high-purity graphite powder.

The purification treatment methods for high carbon graphite powder are divided into two categories: chemical method purification and high-temperature purification. Chemical analysis purification problems include two types: alkaline acid method and alkaline acid method. Let's briefly introduce and study the purification methods of these three high-purity graphite powders:

The process is now a feasible and mature method for contrast purification, and the purification method for high carbon graphite powder is basically the purification of technical personnel's acid: participating in graphite materials, various acids, removing impurities in reaction kettle reactions, washing centrifuges for dehydration, discharging, drying, and sewage treatment.

The alkali acid method and caustic soda method produce soluble active silicates and hydroxides by calcining impurities in graphite at high temperature in caustic soda. Water washing and desilication are carried out to produce chlorides that can tolerate water without any other impurities reacting with hydrochloric acid. Once again, we wash ourselves out. It is called the main ingredient, stirring, high-temperature partial melting, leaching during the cooling process, washing, dehydration, and drying.

The high-temperature purification method uses graphite to withstand high temperatures. When heated to a certain extent at high temperatures, impurities will evaporate in a gaseous state, and the boiling point of graphite is greater than 3700 degrees. This method has high energy consumption and cost. Except for some military or special professions, it is difficult to achieve industrial large-scale production. The purification method of high carbon graphite powder is the first of these methods, and graphite powder manufacturers will use different purification technologies based on their own skills and equipment.